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User questions

Hold open buzz

Why is the Von Duprin PS873 power supply buzzing or chattering?
How do you adjust the hold open time on a 4600 (4630/4640) operator?
What are Hold Open Closers & Magnets?
How do I wire an EL device to normally hold open the latch and release it during a fire alarm?
What would cause a 4040SE not to hold the door open?
What degrees of opening can a 4110 EDA be templated for?
Can a magnet, or sentronic device, be released and close the door from a button at a desk?
What would cause a 4111 HEDA to not hold open?

keyed lock handle removal no key for lock

I can not remove the key from the cylinder on my BE365 deadbolt lock.
Why can't I remove the control key from the core after the core is inserted into the lever?
I am unable to remove my key from a B600 B700 B800 deadbolt.
How do I remove an X lock from the door?
How do you remove the cylinder from an A series knob?
Is the Falcon T381 a true classroom security function?
The key just spins on a B560R B561R or B563R deadbolt.
Why would the 996L trim not lock or unlock when installed with 98 or 99EO?
Why does my key cylinder spin and not lock or unlock the ND?
When was e.Primus discontinued?
Engage NDE and LE - Mechanical Key Override and Audits
How many change or user keys are supplied with a lock?
What mortise cylinder cam is needed for KR4023?
I get three green blinks of the Schlage key and it says motor stall on my SUS/HHD during diagnostics?
What is Blockokey keying?
MA451
MA641
MA581
H185
X571
X521
L9070
H511
X561
L9094EL/EU
D60
What is the part number for the SFIC tail piece for a W lock?
What is the ME9453?
What is the center to center for the Falcon H lock?
What are the part numbers for the inside and outside knobs for the L series?
Can you order the Schlage L series mortise lock with knob on one side and lever on the other?
The Hand Held Device (HHD) or Schlage Utility Software (SUS) will not connect to the CO200?
What tool is needed to remove the security screw from a CO lock?
How to remove lock from Smart Things Hub
How do I cut a door to accept a Falcon W series lock?
What is the minimum stile for Schlage locks?
Schlage S200 Series
What is an interconnected lock?
What is a cylindrical lock?
Do we have a Schlage conventional retrofit cylinder for Yale locks?
When are Panic Devices required?
What does the cylinder suffix BDC mean?
Why can't I get my JD YA6 cylinder to install into an AD-Series lock?
Is there an occupancy indicator for the ND40?
Outside lever on the T and RU 571's won't unlock after egress.
Why is the key locking and/or unlocking my E996L for a 9875?
What did the latch on the MD lock look like?
How do I remove the lever on an M lock?
What backsets are available on Schlage and Falcon locks?
Can the A-series knob be used on a D-series lock?
How to order an extended D knob series lock?
When did Everest 29 keyways become the default?
How do I assemble my ND75 / ND95 lock chassis?
How big is the Collins trim?
Will a Medeco key-in-lever cylinder fit into an ND lock?
What is a display key?
L9071
MA561
LM9350
LM9371
X511
L9060
L9080
A53
L9050
Does Schlage or Falcon manufacture a stainless steel cylindrical or mortise lock?
How do I order a lock for a non-standard or thick door?
Why is the lever binding on LV9000 locks?
What are the standard hinge and lock spacing for doors and frames?
Can the Von Duprin WS98/9927 exit device be operated as Night Latch function?
Do Schlage cylinders meet BHMA A156.30 Grade 1?
Why can't I LINK my AD-Series lock?
How do I change the function of the Von Duprin 7500 mortise lock from Lever ( classroom ) to NL ( night latch )?
Why does my 7500 retract the latch bolt but not re-lock the trim?
Schlage AL small format spacer installation requirements.
How do you remove an AL lock from a door?
L9095EL/EU
L9495EL/EU
L9493EL/EU
L9486
What is the part number for a privacy emergency key?
How to remove a double cylinder deadbolt?
KEYED REMOVABLE
T351
D66
D72
X501
How does the L9071 operate?
L9494EL/EU
L9492EL/EU
L9092EL/EU
L9093EL/EU
LM9380
Are the Schlage H series knobs sold separate?
What are the steps to remove an S lock from the door?
Can I have multiple Hand Held Devices (HHD) coupled to the same lock?
How do I identify the old Falcon T lock chassis versus the new T lock chassis?
CM Lock Manual Programming Disabled
How to remove lock from Wink
Is there a plastic lever that fits over knobs?
What causes the error "Device does not support this action - E802" when I'm coupling an AD lock?
Can the credential reader be changed on a CO-Series lockset?
Why is my HHD not connecting to my AD lock?
What is thermal bow?
How do I change an AD-Series lock to a different AD-Series lock type?
Why does the Schlage button light up “Green” when I open the door?
Why did my CO Lock stop working after the Reader Module (electronics) was changed?
What is part number for the emergency key for privacy function locks?
What does the hotel indicator look like for the A, AL, D, and ND?
Can I put a Schlage Key-In-Lever cylinder into a Falcon D100 or D200 lock?
Does Schlage make a mortise lock that the lever on either side retracts the latch and a key on either side retracts the deadbolt?
How are interchangeable cores installed?
Is the keyed removable option KR available on Von Duprin aluminum mullions?
What is a Mechanical Lock?
What is a lock function?
Will the L9485 or L9486 operate without a hotel cylinder?
Von Duprin electrified mullions and handing details.
What cylinder do I use on a Von Duprin Keyed Removable Mullion?
How do I clear the HandNet for Windows error message, "Index or primary key cannot contain a null value" on a biometric HandKey?
Which keyed removable kit is used with a 4754, 4854, 9854, or 9954 mullion?
Is the blue ND lever tool shipped with each lock?
Explain the function for the L9485.
What is the L9080 function?
Explain the MA581 function
How do I remove and reuse a Schlage Control lock?
What other locks can the blue lever removal tool 24002693 be used with?
Does the S200 cylinder require a sleeve for installation?
Key in lever
Key over-ride
MA521
LM9370
D53
L9485
L9480
How does the LV9050 operate?
L9453
L9458
D70
A70
D82
Why would the 25-R latch release the door by applying repetitive force to the 510L lever handle?
What drains the AA batteries on an CO-Series lock?
What drains the AA batteries on an AD-Series lock?
Chexit goes into alarm with fast flashing LED and not locking after rearm time.
What process should be followed to change the Credential Reader type on a AD-Series lock?
Is a standard cylinder keyway such as "C" available in SFIC?
Is the MA lock available with the RX feature?
What ligature resistant trim is available on the ND or L9000?
Moving from Wink System

maximum glass bead kit

What is the maximum number of glass bead kits that can be stacked?

rim cylinder door

What is the maximum door thickness a rim cylinder can fit on?

Rim Cylinder door thickness

What is the maximum door thickness a rim cylinder can fit on?

schlage l series spring age

What BHMA grade is the Schlage ND Series?

warranty information al

Warranty information on Allegion Commercial products.

what is black finish

What is the 689 finish?

what is lc

What is the difference between an RX switch and an RX-LC switch?

ada push plate door location

What is the ANSI recommendation for the distance between the actuator and the door opening?
What are Electro-hydraulic Automatic Operators?
620-Series Pushbuttons - Force or Push Strength
Do Von Duprin Exit devices meet the 5 pound force requirement for opening an ADA handicapped door opening?
What is the minimum clear opening width required by ADA on a single door?